Fast-Slow Pointers vs Two Pointers
Learn when to use each pattern and make the right choice in your coding interview.
Quick Answer
Use Fast Slow Pointers when the problem fits fast-slow-pointers pattern
Use Two Pointers when the problem fits two-pointers pattern
Side-by-Side Comparison
Fast Slow Pointers
Best For
Various algorithmic problems
Time
Varies
Space
Varies
Two Pointers
Best For
Various algorithmic problems
Time
Varies
Space
Varies
How to Decide
- Analyze the problem constraints
- Consider time/space trade-offs
- Look for pattern triggers
Practice Both Patterns
Build intuition to recognize which pattern fits. Practice with interactive MCQs in LeetEye.
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